Re: 2.6.33: ftrace triggers soft lockup

[Li Zefan]

AmÃrico Wang wrote:
> Hi, Steven, Frederic, Ingo,
> 
> I am not sure if this is ftrace's fault, but it is ftrace who triggers
> the soft lockup. On my machine, it is pretty easy, just run:
> 
> echo function_graph > current_tracer
> 
> I found this when 2.6.33-rc7, but forgot to report here. I just tried today's
> Linus tree, it still has this problem.
> 

I can also trigger soft lockup while running a stress test for ftrace.

I'll post detailed information after more testing.

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